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Which came first? The Theory of Acquired Traits or The Theory of Evolution?

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acquired traits

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Evolution - Details

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1) Chapter 1 View

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20 questions

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Which came first? The Theory of Acquired Traits or The Theory of Evolution?

Acquired traits

What theory suggested that new physical traits can be acquired or lost during one's life through use/disuse and passed off to offspring

Acquired traits

Punctuated equilibrium is a rapid evolutionary change followed by a long period of no change, whereas gradualism is, as the name implies, is a slower and more subtle change. These are both...

Rates of evolution

Shell shape in tortoises vary even between...

Islands

Trait variations caused of gene mutations, natural selection (survival of the fittest), reproductive inheritance, and population adaptation are the steps of what?

Evolution process

What refers to the frequency of genetic variations in a population?

Gene pool

Nature selects in favor of organisms with advantageous traits that increase their "fitness" (ability to survive and reproduce). These are called adaptations which can be physical or behavioral.

Natural selection

Organism with the ability to reproduce and pass adaptive trait

Reproductive inheritance

The frequency of organisms in the population with the adaptive trait will be higher in frequency of organisms with less advantageous traits

Population adaptation

New species arise when organisms diversify away from a common ancestor by evolving and adapting to specialize in a new niche

Speciation

Fossils, embryology, homologous structures, vestigial structures and behaviors are..

Four pieces of evidence that suggest evolution

Relative dating and radioactive carbon isotope dating are two methods of dating what? (argue methods vary, can only be accurate and up to date as tech, timeline gaps, cannot know for sure if related or just similar)

Fossils

Scientists theorize that the similarities organisms share as embryos suggests that all organisms evolved from one common ancestor (others argue that this is too early in development)

Embryology

Homologous structures

Theoretically leftover remnants of evolutionary common ancestors because they are not necessary for survival (debated because there could be a hidden purpose)

Vestigial structures

Same function different structure

Analogous structures

True or False: humans evolved from modern-day apes

False

Most of the evidence that supports evolution lacks the connection between what?

Invertebrates and vertebrates

No offspring or sterile offspring, different times of maturity, different mating seasons, different mating behaviors are all what?

Reproductive isolation barriers

If there is not enough genetic variation in a population, then there are no new potential adaptations to keep up with environmental changes, which can lead to what?

Extinction